The relationship between species diversity of myxomycetes on litter twigs and forest vegetation types in western Japan

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  • 西日本における落枝生変形菌の種多様性と森林タイプとの関係

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Abstract

Myxomycetes mostly inhabit detritus environments of forests in terrestrial ecosystem. However, differences in myxomycete communities among various vegetation types of local forests have been little known. We examined the myxomycete communities on litter twigs in six types of forests (three types of natural and three types of countryside forests) due to clarify characteristics of the myxomycete diversity in western Japan. Fallen twigs were collected from the forest floor under trees dominating the canopy in all six forests, and moist chamber cultures were established in 640 Petri dishes. In total, 42 taxa belonging to 19 genera were recorded, of which only four species were common to all six forests. The natural broad-leaved evergreen forest (21 taxa) and the country-side pine forest (7 taxa), respectively, showed the highest and lowest α-diversities for myxomycete communities. The species diversity in countryside forests was lower than that in natural forests. Non-metric multidimensional scaling revealed that the myxomycete communities in natural forests distinctively had characteristic community structures and those in country-side forests resembled those in the adjacent natural forests, except in the country-side pine forest. To our knowledge, this is the first comprehensive study on the relationships between forest types and myxomycete communities living on litter twigs in Japan; these findings indicate the potential effects of geographical location and forest types, including biodiversity decreasing influenced by anthropogenic activity.

Journal

  • Hikobia

    Hikobia 18 (4), 231-243, 2022-12-28

    Hikobia Botanical Society

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